You may also read thread727-53526 for more help.
I think first you need to review FEA model with FEA analysts to see if there are any possiblity of high stress from modeling method. Be care of high stress in
1. Between component interface in assembly
2. Boundary condition applied areas
High...
corus:
Regarding your second paragraph, could you talk about it a little bit more?
It seems that any high stress except primary stress woundn't cause permanent set. Do you have any recommended reading or book talking about this topic?
I saw couple of post mentioned about ASME code. Is that a...
corus:
Thanks for your post. I would agree with you and probably this kind of specification is not right in automotive industry. They should state very clearly that the permanent deformation is measured at the first time when extreme load is applied.
In addition, one interest question come to...
Hi, Bradh and corus:
This discussion is very helpful and I really appreciate you share your knowledge.
I am not a professional FEA analyst. However, my job involves making design decidion by using FEA analysis results. The company I am working for don't have non-linear analysis capability...
Greg:
Thanks for your advice and glad to know you are also in Automotive industry:->.
Actually, my first correlation test is not too bad on displacement. It's inside 10% range. By the way, I am working on brake pedal asm. The specification requires certain deflection under certain load.
I am...
I am doing some FEA analyses and also have a chance to run tests to verify my models.
I have two questions:
1. What do you measure when you run verification test? Displacement or strain?
2. How to verify the permanent deformation start to happen? Some localized yield stress may not be able to...
Elogesh:
Thanks for the reply. Actually, I am working on a car brake beam study. Just image the brake pedal beam has to been made in two pieces.
My current model is established as stated. I am doubt that the beams and spider rigid elements (to model rivets) could pass the force and torque to...
I am analyzing a structure which have two plates (50x100mm and 150x80mm)connected by three rivets.
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| x | |
| x | |
| x | |
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Plate 1 Plate 2 (10 mm in thickness)
The rivet...
One engineer told me that he likes to use strain energy number for design guideline, i.e. strength high strain energy area. Is this correct?
By the way, what's the different between strain energy and energy norm?
Thanks.
Anbody have experience on FEA analysis on plastic parts? I have read some article and most people suggested that nonlinear FEA should be used. Is that true?
I understand that the stress-starin curve of plastic is different from that of metal. However, I still would like to use linear to start...
I am do a linear static analysis using 100 N. If I want to know the displacement and stress for 10 N, Can I just scale down the stress and displacement?
How accurate is the scaled result?
